Everyday Science Test 3

Total Questions: 25

1 - Heating element of an electric heater is made up of

A ) Tungsten
B ) Graphite
C ) Chromium
D ) Nichrome ✅

2 - In an oil lamp,the oil rises up in the wick due to

A ) Capillary action ✅
B ) Atmospheric pressure
C ) Viscosity of oil
D ) Change in temperature

3 - Acid rain contains high levels of

A ) Oxalic acid
B ) Acetic acid
C ) Sulphuric and nitric acid ✅
D ) Carbolic acid

4 - Which one of the following would give the highest energy per gram?

A ) Glucose
B ) Proteins
C ) Fats ✅
D ) Sucrose

5 - Which one of the following units represents the large amount of energy?

A ) Calorie ✅
B ) Joule
C ) Erg
D ) Electron volt

6 - A woman's voice is shriller than a man's due to

A ) Higher frequency ✅
B ) Higher amplitude
C ) Lower frequency
D ) Weak vocal chords

7 - Which gas is used in the preparation of soft drinks?

A ) Oxygen
B ) Carbon dioxide ✅
C ) Nitrogen
D ) Halogens

8 - Why are soft drinks mad with chilled water rather than water at room temperature?

A ) Ingredients dissolve better in chilled water
B ) Chilled water enhances the taste
C ) Chilled water attracts more carbon dioxide ✅
D ) Chilled water is more hygienic

9 - Coke is made by heating coal in the absence of air at:

A ) 700°C
B ) 900°C
C ) 1300°C ✅
D ) 1700°

10 - In blood,the percentage of water is

A ) 75%
B ) 85%
C ) 90% ✅
D ) 95%

11 - As the temperature of ice rises,the ice melts and it's density

A ) Decreases
B ) Remains constant
C ) Increases ✅
D ) Increases UpTo 10°C

12 - Water is a universal solvent for what reactions:

A ) Physical
B ) Chemical
C ) Nuclear
D ) Biochemical ✅

13 - The volume percentage of nitrogen in air is

A ) 60%
B ) 67%
C ) 74%
D ) 78% ✅

14 - Nitrogen occurs in plants and animals in the form of

A ) Minerals
B ) Fats
C ) Carbohydrates
D ) Proteins ✅

17 - The second most abundant metal found in the earth's crust is.

A ) Iron ✅
B ) Aluminum
C ) Calcium
D ) Sodium

18 - Which of the following is involved in blood clotting.

A ) Sodium
B ) Magnecium
C ) Calcium ✅
D ) Potassium

19 - For water purification,we use

A ) Chlorine ✅
B ) Bromine
C ) Flourine
D ) Iodine

20 - Deficiency of chloride cause the impaired growth in

A ) Animals
B ) Infants ✅
C ) Plants
D ) Young man

21 - The human blood is divided into

A ) Two groups
B ) Three groups
C ) Four groups ✅
D ) Five groups

22 - Which type of blood of individuals are known as universal donor.

A ) Type A
B ) Type B
C ) Type AB
D ) Type O ✅

23 - Which type of blood of individuals are universal recipients.

A ) Type B
B ) Type A
C ) Type AB ✅
D ) Type O

24 - In the atmosphere, conditions of high pressure indicate

A ) Sunny weather
B ) Storms ✅
C ) Fair weather
D ) Windy weather

25 - The nucleus, tissues and blood all are made up of

A ) Carbohydrates
B ) Proteins ✅
C ) Vitamins
D ) Fats